Technical Sgt. Chad Huntly, 185th Air Refueling Wing Equipment Maintenance, checks the structural strength at the production break on the wing of a KC-135 Strato-Tanker using an ultrasonic test unit in Sioux City, Iowa on January 4, 2018. Huntley works in the Non-Destructive Inspection or NDI shop at the Iowa Air National Guard unit based in Sioux City.Photo by Master Sgt. Vincent De Groot

They have personnel stationed all over the world on a constant rotational basis and some will soon go on a new mission: